JPH1161819A - Inclined water bottom ground leveling construction method, device therefor and inclined water bottom ground leveling work barge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water bottom ground leveling construction method, a device therefor and a water bottom ground leveling work barge by which a surface of the inclined water bottom ground can be accurately leveled under uniform pressure so as to coincide with a design inclined face without being influenced by a water flow. SOLUTION: An inclined water bottom ground leveling device 2 has a plate- like damper 3 landed along its design inclined face on the inclined water bottom ground B, an impact means 4 to apply impact in the direction orthogonal to the design inclined face to this damper 3, a leader 5 to hold the damper 3 and the impact means 4 in the direction orthogonal to the design inclined face so as to be capable of advancing/retreating and an advance retreat means 6 to advance/retreat the damper 3 and the impact means 4 by using the leader 5 as a guide. The device 2 is rigged in a pontoon 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for leveling a submerged ground, a device therefor, and a work boat for leveling a submerged ground. In particular, the surface of the submerged ground is accurately designed without being affected by water flow. The present invention relates to an underwater leveling method, an apparatus thereof, and an underwater leveling work boat capable of being equalized and leveled with a uniform pressure.

[0002]

2. Description of the Related Art When constructing piers, breakwaters, artificial islands, and the like, it is not uncommon for sand, rubble, and the like to be scattered on the bottom of the water to form a floor, and the floor to be sunk to form a foundation.

[0003] The work of leveling the upper surface of the underwater ground is performed by a diver diving into the bottom of the water to perform leveling work, using an underwater construction machine such as an underwater backhoe, or allowing the weight lifted by a crane to fall naturally. Is adopted.

[0004] In addition, to prevent the peripheral edge of the foundation from being washed away, waste stones are scattered on the inclined surface formed on the peripheral edge of the foundation. It is the actual situation that the sloping ground at the periphery of the foundation is flattened to a predetermined slope by a diver mainly stacking discarded stones and hitting a weight against the slope.

[0005]

In this prior art, the structure and the tamping pressure of the discarded stones on the inclined surface vary depending on the work of the diver, and the tamper can be tamped even on a slope laid by the same diver. Pressure and angle become unstable, and there is a problem that it is not possible to construct a sloping underwater ground having a slope and strength as designed.

[0006] The sloped bottom ground leveling method according to the present invention (hereinafter referred to as the present invention method) solves such a technical problem of the prior art, and makes the sloped bottom ground on a slope as designed, and It is an object of the present invention to provide a method of leveling a submerged ground with even pressure.

[0007] Further, the inclined underground ground leveling apparatus according to the present invention (hereinafter, referred to as the present invention apparatus) can carry out the above-described method of the present invention, so that the inclined underwater ground can be accurately formed on a slope as designed, and It is an object of the present invention to provide an inclined underwater ground leveling device capable of leveling with even pressure.

[0008] Furthermore, the sloped bottom soil leveling work ship according to the present invention (hereinafter referred to as the "ship of the present invention") can perform the method of the present invention in any water area, and thus can be constructed in any water area. It is an object of the present invention to provide a work boat for sloping underwater ground, which can equalize a slope as designed and with even pressure.

[0009]

According to the method of the present invention, in order to achieve the above object, a plate-shaped tamper 3 is formed on an inclined submarine ground B.
The tamper 3 is impacted in the thickness direction of the tamper 3 while holding the inclination angle of the tamper 3 to squeeze the sloping underground ground B to match the designed slope. Means to equalize.

According to the method of the present invention, the tamper 3 is settled on the inclined underground B along the designed inclined surface, so that when the tamper 3 is settled, the tamper 3 is accurately positioned at a predetermined point pressure position. The tamper 3 can be settled on the ground, and the tamper 3 is prevented from being moved by the water flow and moved from the point pressure position by the ground resistance of the tamper 3 after the tamper is settled and before the impact is applied.

According to the method of the present invention, the tamper 3 is given an impact in the thickness direction of the tamper 3 while maintaining the tamper 3 at an inclination angle along the designed inclined surface. The inclination angle of the tamper 3 is prevented from being fluctuated by the water flow until the impact is applied, and the surface of the inclined bottom base B is accurately tamped with an impact force in a direction perpendicular to the designed inclined surface. Can be.

In the method of the present invention, the tamper 3 may be impacted only once at one point pressure position. However, the point pressure is averaged, and the sloping underground is gradually adjusted until the tamper 3 matches the designed slope. In order to compact the slope of B, 1
It is preferable that impact is applied to the tamper 3 a plurality of times at one point pressure position to squeeze the tamper.

In the method of the present invention, the method of applying an impact to the tamper 3 is not particularly limited. For example, a method of applying an impact to the tamper 3 when receiving the weight 9 that falls naturally, or a method of generating an impact mechanically There is a method of giving an impact of a vibrohammer to the tamper 3.

When the area of the inclined bottom B is larger than the area of the tamper 3, the method of the present invention must be performed at a plurality of point pressure positions. For this purpose, the position of the tamper 3 is moved horizontally. There is a need. The tamper 3 is landed at one point pressure position, and an impact is given to the sloping underground B
To make the slope B
When the tamper 3 is moved from the point pressure position to the other point pressure position, the tamper 3 moves the inclined underground B around the point pressure position. In order to prevent collision with the tamper, the tamper 3 is moved to the next point pressure position after the tamper 3 is sufficiently separated from the inclined bottom floor B. Then, the method of the present invention of moving to the next point pressure position, landing the tamper 3 as described above, and applying an impact to level the sloped bottom B is repeated.

Next, in order to achieve the above object, the apparatus of the present invention comprises a plate-shaped tamper 3 which is settled on the inclined underground B along the designed inclined surface, and the tamper 3 has a designed inclined surface. An impacting means 4 for applying an impact in a direction orthogonal to the tamper 3, a leader 5 for holding the tamper 3 and the impacting means 4 so as to be able to advance and retreat in a direction orthogonal to the designed inclined surface, and a tamper 3 and the impacting means 4 guided by the leader 5 Advancing / retreating means 6 for advancing / retreating toward the inclined underwater ground B.

According to the apparatus of the present invention, for example, the tamper 3 and the impact means 4 are held on the quay, the offshore platform, the barge 1 and the like via the leader 5 so as to be able to advance and retreat in the direction orthogonal to the design inclined plane B. 6, using the leader 5 as a guide, the tamper 3 is settled on the inclined underground B,
The method of the present invention for leveling the inclined underground B by applying an impact to the tamper 3 in a direction perpendicular to the designed inclined surface by applying the impact means 4 can be carried out.

Therefore, according to the apparatus of the present invention, the tamper 3 is settled on the inclined bottom B by guiding the leader 5, so that the tamper 3 can be accurately positioned at a predetermined point pressure position. , Tamper 3 by leader 5 even after landing
And the impact means 4 is held in a direction perpendicular to the designed inclined surface, and the angle of the tamper 3 is changed by being swept by the water flow or moved by the water flow due to the frictional force between the tamper 3 and the inclined bottom floor B. Is prevented.

Then, while the tamper 3 is held by the leader 5 so as to be able to advance and retreat in a direction perpendicular to the designed inclined surface, an impact in the direction orthogonal to the designed inclined surface is applied to the tamper 3 by the impact means 4. Can be tamped with exactly a certain point pressure and leveled to match the designed slope.

The impact means 4 of the device of the present invention may be configured so as to apply an impact in a direction perpendicular to the designed inclined surface to the tamper 3 settled on the inclined underground B.
The tamper 3 can be classified into a type that gives an impact to the tamper 3 by the weight 9 that falls by its own weight, and a type that gives an impact to the tamper 3 by a vibratory hammer that generates a mechanical impact force.

The impact means 4 for giving an impact to the tamper 3 by the weight 9 falling by its own weight comprises a weight 9 and a lifting device 10 for lifting the weight 9, and the weight 9 is moved to a predetermined height by the lifting device 10. After lifting, the winch wire 12 is freed while being connected to the weight 9, or the weight 9 is released from the winch and dropped by its own weight.

Here, in order to release the weight 9 from the winch of the lifting device 10, the carrier of the lifting device 10 may be constituted by a magnetic chuck 13, or the weight 9 may be connected via an interlock ring, a cylinder, or the like. The winch may be supported.

It is preferable that the weight 9 falling by its own weight is guided by the weight guide means in order to stabilize the direction of the impact generated when receiving the weight 9 and the position where the impact force is applied to the tamper 3.

The weight guide means only needs to be configured to guide the direction in which the weight 9 falls by its own weight. However, in order to use the impact force of the weight 9 for compaction without waste, the weight is used. It is preferable to guide the weight 9 in a direction perpendicular to the design slope, and to guide the weight 9 in the axial direction passing through the center of the tamper 3 and orthogonal to the design slope. More preferred.

Specifically, for the weight guide means, for example, a hollow or solid shaft 8 having a lower end coaxially connected to a tamper may be used. In the case where the weight guide means 8 is used, a scale 14 for measuring the water depth can be formed on the outer peripheral surface thereof, whereby the water depth of the inclined bottom B can be measured easily and in real time. .

In the case where the weight guide means is constituted by a hollow shaft (cylindrical body) 8, the weight 9 can be further moved up and down inside the weight guide means to make the weight compact. The influence of the buoyancy and viscosity of water on the lifting and lowering of the weight 9 can be eliminated. In this case, the lifting device 1
By disposing 0 in the weight guide means, it is possible to make the impact means 4 a unit component and to make it even more compact.

When the weight guide means is constituted by a solid shaft, the weight guide means is made thinner to reduce the influence of the water flow, so that the tamper 3 can be easily positioned at the time of landing. In addition to this, it is possible to prevent the tamper 3 and the weight guide means from being moved by the water flow after the tamper 3 has landed, and to prevent the inclination angle of the tamper from being fluctuated by the water flow.

When the shaft is solid, the weight 9 is connected to the shaft 8 by arranging the weight 9 around the shaft 8 so as to be able to move up or down over part or all of its circumference. The weight 9 can be moved up and down by using the guide on the vertical axis as a guide. Further, in this case, the lifting device 1 for suspending the weight
By supporting 0 on the upper part of the shaft, the device can be unitized.

The weight 9 is lifted by the lifting device 10 to make the tamper 3
Is lifted to a predetermined height, and then falls by its own weight by, for example, releasing the winch wire of the lifting device 10 or releasing it from the lifting device 10. In order to obtain an impact by the weight 9 falling by its own weight, the weight 9 must be received by the tamper 3 or a component connected thereto, for example, the weight guide means from obliquely below. When receiving the tamper, the tamper 3 may be received on the upper surface. When the weight guide means receives the weight, it may be received on the upper surface of the weight guide means. However, in order to reduce the size and size of the entire apparatus, the height of the intermediate height of the weight guide means is reduced. It is preferable that a flange or a step surface perpendicular to the guide direction is provided at the portion or the lower portion, and the flange or the step surface is received.

Further, the weight 9 may be received directly by the tamper 3 or a component connected thereto. However, in order to increase the impact force for squeezing the underwater ground B, the weight 9 is tamped via the pressure intensifier 21. Alternatively, it is preferable to make a part connected to this receive it.

In the case where a vibro hammer that mechanically generates an impact is used as the impact means 4, even if the tamper 3 is directly connected to the lower end of the vibro hammer, the tamper may be inserted through a suitable hollow or solid pillar. 3 may be connected.

Here, the vibratory hammer includes a vibrator that generates a wide range of mechanical vibrations and a hammer (a ram or a weight) that is driven by the vibratory hammer. An electric hammer that converts a rotational force into a forward / backward movement of a hammer via a slider-crank mechanism, a hammer, a solenoid that magnetically attracts the hammer, and a spring that biases the hammer in a direction opposite to the magnetic attraction force of the solenoid. Electric hammer, air hammer that transmits the movement of the piston that moves forward and backward by switching the supply and discharge of compressed air to the hammer, hydraulic air hammer that transmits the movement of the piston that moves forward and backward by switching the supply and discharge of the pressure oil to the hammer, and free piston type diesel engine It also includes engine hammers that use the principle.

In this case as well, a pressure intensifier 21 is incorporated in the vibro-hammer to increase the impact force of the hammer of the vibro-hammer, or the pressure-intensifier 21 is interposed between the vibro-hammer and the tamper 3 so that Preferably, the impact of the hammer is increased and transmitted to the tamper 3.

The reader 5 of the apparatus of the present invention may be configured so that its guiding direction is fixed at a predetermined angle. However, in order to be able to freely cope with the inclination angles of various design inclined surfaces, the reader 5 is required. It is preferable to provide undulating means 5 and to provide undulating means 7 for undulating the reader 5.

The advancing / retreating means 6 of the apparatus of the present invention raises and / or horizontally moves the tamper 3 to land at a predetermined point pressure position on the inclined bottom ground B, leveles the inclined bottom ground B, and then moves the tamper 3 What is necessary is just to comprise so that it may raise and / or move horizontally, and it may be made to separate from the predetermined point pressure position of the inclined underwater ground B, for example, the crane which suspends the tamper 3 supported so that the reader 5 can advance and retreat. Lifting equipment, cylinders,
In addition to being constituted by a link mechanism, for example, a tamper 3
It is also possible to configure a motor supported by the motor and a gear interlocked with the motor, and a rack that is attached to the reader and includes a pin rack that meshes with the gear.

When a crane is used as the retreating means 6, there is no particular limitation, but the tamper 3 and the impacting means 4 are suspended in order to make the tamper 3 and the impacting means 4 follow the settlement caused by the compaction of the inclined bottom B. It is preferable to use a crane having an auto tension function for automatically adjusting the tension of the wire to be lowered to a constant value.

In the apparatus of the present invention, in order to level the sloped bottom B which is wider than the area of the tamper 3, the tamper 3,
Horizontal moving means for horizontally moving the impact means 4, the leader 5, and the reciprocating means 6 can be provided.

The horizontal moving means only needs to be capable of horizontally moving the tamper 3, impact means 4, leader 5 and advance / retreat means 6, and these tamper 3, impact means 4,
The leader 5 and the reciprocating means 6 may be configured to move in one horizontal direction and rotate about one point, or may be configured to reciprocate in two horizontal directions crossing each other. In addition to being able to advance and retreat in two horizontal directions intersecting with each other and in a composite direction thereof, it is possible to make a turn around a given point, a turn of a constant radius, a turn of a spiral while continuously changing the radius, and the like. The barge 1 that can be used can be used as horizontal moving means.

Next, in order to achieve the above object, the ship of the present invention employs a means of including a barge 1 and a device 2 of the present invention equipped with the barge. In the ship of the present invention,
The barge 1 may be able to navigate on its own, may be towed by another ship, or may be propelled by another ship.

The description of the device 2 of the present invention used for the ship of the present invention will be omitted here because it is duplicated.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the method of the present invention, the apparatus of the present invention, and the ship of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a structural view of an embodiment of the method of the present invention, the apparatus of the present invention, and the ship of the present invention. An inclined submarine ground leveling device 2 according to an embodiment of the invention device, and a barge 1
Is moved to an arbitrary water area by self-propelled, towed or propelled, and the inclined underground leveling operation according to one embodiment of the method of the present invention described below can be performed using the inclined underground leveling device 2.

The inclined subsurface ground leveling device 2 is provided with a plate-shaped tamper 3 that is settled on the inclined subsurface ground B along the designed inclined surface, and applies an impact to the tamper 3 in a direction perpendicular to the designed inclined surface. An impacting means 4 for giving the tamper 3 and the impacting means 4 movably up and down in a direction perpendicular to the designed inclined surface; It has an advancing / retreating means 6 for advancing and retreating toward the ground B and an undulating means 7 for raising and lowering the leader 5. After the guiding direction of the leader 5 is directed by the undulating means 7 in a direction orthogonal to the designed inclined plane, the barge 1 By controlling the position, the tamper 4 is made to face a predetermined point pressure position, and thereafter the tamper 3 and the impact means 4 are lowered by the advance / retreat means 6 toward the inclined underground B until the tamper 3 has landed. After that, according to an embodiment of the method of the present invention, the tamper 3 is landed and then the tamper 3 is impacted by the impact means 4 to squeeze the sloping underwater ground B so as to conform to the designed sloping surface. Leveling work is performed on the slope.

When the tamper 3 is landed on the inclined bottom B, the tamper 3 and the impact means 4 are held by the leader 5 in a direction perpendicular to the designed inclined surface, and the tamper 3
Is the weight of the tamper 3 and the impact means 7, and
The tamper 3 moves along the surface of the inclined underground B because the frictional force is generated against the force of the water flow or the like that is pressed by the tamper 3 to move the tamper 3 along the surface of the inclined underground B. It is surely prevented.

Further, the tamper 3 and the impact means 4 are
Is held in the direction perpendicular to the design slope,
There is no danger that the tamper 3 will be swung by the water flow and its inclination angle will change.

As described above, when the tamper 3 has the inclined
In a state where the tamper 3 is prevented from moving along the surface and a predetermined angle is maintained, the tamper 3 is impacted by the impact means 4 to compact the underwater ground B and level the surface.

Therefore, the horizontal ground B is compacted exactly at a predetermined point pressure position from a direction orthogonal to the designed slope, and is leveled to match the designed slope. The impact means 4 comprises a hollow, longitudinal axis 8 connected to the upper surface of the tamper 3, and a weight 9, which can be raised and lowered therein.
And a lifting device (for example, a hoist) 10 that is disposed inside the shaft body 8 and lifts the weight 9.

The second lifting device 10 comprises a main body 11 and
A weight 12 made of a magnetic material such as iron, steel or the like is provided with a wire 12 which is fed out or wound up from the body 11 and a magnetic chuck 13 connected to the tip of the wire 12. Then, the weight 9 is lifted from the upper surface of the tamper 3 to a predetermined height, and then the magnetic chuck 13 is stopped to separate the weight 9 from the magnetic chuck 13 and drop by its own weight.

When the weight 9 falling by its own weight is received on the upper surface of the tamper 3, it impacts the tamper 3 to squeeze and level the inclined underground B. The impact force applied from the weight 9 to the tamper 3 can be adjusted stepwise by making the mass or weight of the weight 9 different.
By making the lifting height of the weight 9 different, it can be adjusted steplessly.

The compaction of the sloping underground B due to the drop of the weight 9 may be performed once at one point pressure position, but may be repeated several times at one point pressure position if necessary. Bottom ground B by repeating
Can be solidified, and furthermore, the sloping underwater ground B can be tamped until it matches a predetermined design sloping surface.

In order to easily measure the amount of settlement of the sloping ground B due to the compaction, graduations 14 indicating the water depth are formed on the outer peripheral surface of the shaft 8 at appropriate intervals in the vertical direction. Have been.

It should be noted that, if necessary, this shaft body 8
A guide for guiding the lifting and lowering of the weight 9 is provided. In addition, the underwater ground B leveled by this device is not particularly limited,
For example, a floor is formed on a natural water bottom with, for example, sand or broken stone, and further, a broken stone is laid on the upper surface thereof.

The impact force acting on the tamper 3 also acts on the reciprocating means 6. The reciprocating means 6 is provided with an impact absorbing means 15 comprising a spring for absorbing an impact. The shock transmitted to the retreating means 6 is absorbed by the shock absorbing action or the shock absorbing action of the shock absorbing means, so that the life of the reciprocating means 6 is not shortened by the shock of the shocking means 4.

The construction of the shock absorbing means 15 by a spring is not indispensable to the present invention. Instead of the spring, a hydraulic cylinder or a hydraulic damper is used. Alternatively, another spring having an auto-tension function is used. A lifting device may be used.

The length (height) of the shaft body 8 can be set arbitrarily. In order to obtain a required length, a plurality of shaft bodies 8 of a predetermined length are arranged in the axial direction. It may be added.
Further, in this embodiment, a jib crane 30 is fitted to the barge 1, and the jib crane 30 constitutes the hoisting means 7. That is, the leading end of a jib 32 supported on the swivel table 31 of the jib crane 30 so as to be able to move up and down, and a telescopic beam 33 which is supported by the swivel table 31 so as to be able to move up and down and has a built-in hydraulic cylinder are connected to the leader 5. The undulation angle of the reader 5 is controlled by controlling the undulation angle of 32 and / or the length of the telescopic beam 3.

In another embodiment of the ship of the present invention, the apparatus of the present invention and the method of the present invention shown in FIG. 2, a vibro hammer is used as the impact means 4. The impact means 4 may be directly connected to the tamper 3. However, in this embodiment, in order to prevent the impact means 4 from being submerged and to easily measure the water depth, a cylindrical body is provided on the upper surface of the tamper 3. 16
Are connected coaxially, and a scale 14 for indicating the water depth is provided on the outer peripheral surface of the cylindrical body 16, and the impact means 4 is connected to the cylindrical body 16.
It is mounted on the upper end.

Vibratory hammers are classified into electric hammers, air hammers, hydraulic hammers, and engine hammers according to their driving sources. From the viewpoint of reducing noise generated by the driving source, electric hammers and air hammers are used. , Or it is preferable to use a hydraulic hammer,
Here, a hydraulic hammer that can easily obtain a relatively strong impact force is used.

As shown in the perspective view of FIG. 3, the hydraulic hammer includes a cylindrical casing 17 and a casing 17.
, A ram 20 fitted inside the casing 17 so as to be able to move up and down and connected to a piston rod 19 extending from the body 18, and an intensifier arranged at a lower end in the casing 17 (Converter) 21, and the tamper 3 is connected to the lower end of the casing 17.

The main body 18 comprises a hydraulic cylinder 18a and a power unit 18b for controlling the supply and discharge of pressure oil to and from the hydraulic cylinder 18a. Although not shown, the power unit 18b includes a hydraulic oil tank, a hydraulic pump, and a hydraulic pump. A driving motor, a valve unit for supplying and discharging pressure oil discharged from the hydraulic pump to the hydraulic cylinder 18a, and piping provided over the hydraulic oil tank, the hydraulic pump, the valve unit, and the hydraulic cylinder 18a are provided.

As shown in the sectional view of FIG. 4, the pressure intensifier 21 comprises an anvil 22 for receiving the ram 20 and a cylinder 23 which supports the anvil 22 so as to be able to move up and down and is fixed to the lower end of the casing 17. The pressure applied to the anvil 22 is applied to the hydraulic oil filled in the chamber 24 formed in the cylinder 23, and the pressure is increased according to the principle of Pascal to be applied to the cylinder 23.

Further, by adjusting the stroke of the hydraulic cylinder of the main body 18,
The impact force applied to 1 can be adjusted.
The pressure increase rate can be adjusted by adjusting the amount of hydraulic oil in the cylinder 22 of the pressure intensifier 21.

When the impact means 4 is provided with the pressure intensifier 21 as described above, the output of the main body 18 is increased and transmitted to the tamper 3, so that the main body 19 can be made compact and inexpensive.
The noise and vibration radiated to the surroundings by the cushioning action of the hydraulic oil in the pressure intensifier 21 can be attenuated.

The other structure of this embodiment is the same as that of the previous example, and the operation is the same as that of the previous example except that the mechanical impact generated by the impact means 4 is applied to the tamper 3. Detailed description is omitted to avoid duplication.

In the above description, the work of leveling the sloped bottom ground B at one point pressure position has been described. However, in general, the area of the sloped bottom ground B is larger than the area of the tamper 3. In this case, the tamper 3 is moved and the above-mentioned leveling work of the inclined underwater ground B is repeated.

When moving the tamper 3, the tamper 3
The tamper 3 is horizontally moved to a position opposite to the next point pressure position after the tamper 3 is released from the inclined bottom ground B sufficiently large so that the tamper 3 does not collide with the surrounding inclined bottom floor B.

The horizontal movement of the tamper 3 is performed by the movement of the barge 1 in each of the above embodiments. However, the barge 1 is provided with horizontal movement means for horizontally moving the tamper, impact means, leader and advance / retreat means. Alternatively, the tamper 3 may be moved horizontally by the horizontal moving means. Of course, the movement of the barge 1 and the movement by the horizontal moving means may be used in combination.

[0066]

As described above, the method of the present invention comprises:
Designed a tamper in the form of a sloping submerged ground on a sloped underground along the slope.The tamper was given an impact in the thickness direction of the tamper while maintaining the angle of inclination of the tamper. Since it is leveled to match the slope,
According to the method of the present invention, it is possible to prevent the tamper from flowing by the water flow, thereby preventing the point pressure position from fluctuating, and prevent the water flow from changing the inclination angle of the tamper. It is possible to obtain an effect that the surface of the inclined underwater ground can be accurately equalized with the designed inclined surface with uniform pressure.

The apparatus of the present invention also includes a plate-shaped tamper that is settled on an inclined underground along a design inclined surface thereof, an impact means for applying an impact to the tamper in a direction orthogonal to the designed inclined surface, and a tamper device. And the impact means are designed to be able to advance and retreat in a direction orthogonal to the design inclined surface, and the advance and retreat means for guiding the tamper and the impact means to advance and retreat are provided, so that the plate-like tamper is designed on the inclined bottom ground. The present invention is to land along an inclined surface and apply an impact in the thickness direction of the tamper to the tamper to hold the inclined angle of the tamper, to squeeze the inclined underwater ground, and level the ground so that it conforms to the designed inclined surface. The method can be performed.

Therefore, the tamper is prevented from flowing by the water flow and the point pressure position is prevented from fluctuating, and the inclination angle of the tamper is prevented from being changed by the water flow. It is possible to obtain an effect that the surface of the inclined underwater ground can be equalized with the designed inclined surface and at a uniform pressure.

Further, since the ship of the present invention includes a barge and the device of the present invention fitted to the barge, it is possible to carry out the method of the present invention with the device of the present invention after navigating to any water area. it can.

Therefore, the method of the present invention can be carried out in an arbitrary water area so that the surface of the sloped bottom surface can be accurately adjusted to be equal to the designed slope without being affected by the water flow. The effect that can be obtained can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a ship of the present invention, a device of the present invention, and a method of the present invention.

FIG. 2 is a block diagram of another embodiment of the ship of the present invention, the apparatus of the present invention, and the method of the present invention.

FIG. 3 is a perspective view of a vibration unit of the apparatus of the present invention.

FIG. 4 is a cross-sectional view of a pressure intensifier used for a vibration unit of the apparatus of the present invention. FIG. 9 is a configuration diagram of a conventional example.

[Explanation of symbols]

 B Underwater ground 1 Barge 2 Inclined underwater ground leveling device 3 Tamper 4 Impact means 5 Leader 6 Advance / retreat means 8 Shaft 9 Weight 10 Lifting device 13 Magnetic chuck 21 Intensifier

Claims (13)

[Claims] 1. A tamper having a plate-like shape is placed on an inclined underground along a design inclined surface thereof, and an impact in a plate thickness direction of the tamper is applied to the tamper while maintaining an inclination angle of the tamper. The underwater ground leveling method characterized by tamping and leveling to match the design slope. 2. The method according to claim 1, wherein the tamper is impacted by a weight falling by its own weight. 3. The method according to claim 1, wherein the tamper is impacted with a vibro hammer. 4. Designing a plate-shaped tamper which is settled on an inclined underground along a designed inclined surface, an impact means for applying an impact to the tamper in a direction orthogonal to the designed inclined surface, and a tamper and an impact means are designed. An inclined underwater leveling device, comprising: a leader for holding the tamper and an impact means so as to guide the tamper and the impact means so as to advance and retreat in a direction perpendicular to the inclined surface. 5. The impact means according to claim 4, wherein the impact means comprises a weight, weight guide means for guiding the weight forward and backward in an inclined direction, and a lifting device for lifting the weight and dropping the weight by its own weight. Sloping underwater ground leveling device. 6. The underwater ground leveling device according to claim 5, wherein the weight guiding means is formed of a hollow shaft, and the weight is disposed inside the weight guiding means so as to be able to advance and retreat. 7. An apparatus for leveling an inclined bottom according to claim 5, wherein the weight is formed of a magnetic material, and the lifting device includes a magnetic chuck. 8. The inclined subsurface ground leveling device according to claim 4, wherein the impact means is a vibro hammer. 9. The shock generating device according to claim 4, further comprising: a shock generating section for generating a shock, and a pressure intensifier for increasing the shock generated by the shock generating section and transmitting the shock to a tamper.
Item 8. The inclined submarine ground leveling device according to the above item. 10. The underwater leveling work ship according to claim 4, wherein the impact means is interposed between the reciprocating means and the impact means for absorbing an impact. 11. The reader according to claim 4, further comprising an undulating means for undulating the reader.
The sloped water bottom ground leveling device according to any one of the above items. 12. The inclined underwater leveling device according to claim 4, further comprising a horizontal moving means for horizontally moving the tamper, the impact means, the leader and the retreating means. 13. A submarine ground leveling work boat comprising: a barge; and the inclined submarine ground leveling device according to claim 4 fitted to the barge.